Boiler-flue cleaner.



W. J. BRADLEY.

BOILER FLUE CLEANER.

APPLIOATION FILED JAN. s, 1012.

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INVENTEIH Patented Sept. 23, 1913.

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W. J. BRADLEY.

BOILER I'LUE CLEANER.

APPLICATION nun) JAN.G, 1012.

Patented Sept. 23, 1913.

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UN 1TH dTATE PATENT QFFFCE.

WILLIAM J. BRADLEY, OF TROY, NEW YORK, ASSIGNOR TO MONARCH STEAM BLOWER COMPANY, OF TROY, NEW YORK, A CORPORATION.

BOILER-ELITE CLEANER.

To all "whom it may concern Be it known that I, WVILLIAM J. BRADLEY, a citizen of the United States, residing at Troy, county of Rensselaer, and State of New York, have invented certain new and useful Improvements in Boiler-Flue Cleaners, of which the following is a specification.

The invention relates to such improve ments and COllSlSLS of the novel construction and combination of parts hereinafter described and subsequently claimed.

Reference may be had to the accompanying drawings, and the reference characters marked thereon, which form a part of this specification. Similar characters refer to similar parts in the several figures therein.

Figure 1 of the drawings is a view partly in top plan and partly inv horizontal section of my improved boiler-flue cleaner. Fig. 2 is a central, vertical, longitudinal section of the same taken on the broken line 2-2 in Fig. 1. Fig. 3 is a side view on a larger scale of the hand-wheel broken away, and adjacent portions of the automatic nozzleshifting mechanism. Fig. 4 is an end view of the same. Fig. 5 is a vertical cross-set tion taken on the broken line 55 in Fig. 2. Fig. 6 is a face view of the intermittently operated notched wheel, whereby the shifting movement of the nozzle is induced. Fig. 7 is an edge view of the same. Fig. 8 is a vertical cross-section taken on the broken line 88 in Fig. 2.

This invention relates to the class of sootejectors and cleaners for boilers wherein a jet of steam or air is directed by a nozzle into the ends of the tines. A device of this class is shown and described in my U. S. Patent No. 926,722, granted to me July (3, 1909, to Which patent reference may be had for a more complete understanding of the present invention. In the device shown and described in said patent, means are provided for rotating the nozzle, and the nozzle-outlet is at one side of its axis of rotation, so that the rotary movement of the nozzle causes the issuing jet to traverse a circular path whereby it will be successively directed against the ends of the lines in one of the circular rows; and hand-operated means are also provided for shifting the nozzle laterally to cause its outletto traverse at different times diit'erent circular paths, whereby the issuing jets can be projected Specification of Letters Patent.

Application filed January 6, 1912.

Patented Sept. 23, 1913. Serial No. 669,738.

against the ends of first one circular row and then another circular row of the lines.

The principal object of the present invention is to automatically induce by the rotation of said nozzle, the lateral shiilting thereof whereby the nozzle-outlet will be caused to traverse dill'erent circular paths during successive rotations of the nozzle.

Referring to the drawings wherein the in vention is shown in preterird form, 1, represents a fixed steamor rink-supply pipe, and, 2, is a rotatively mounted continuation thereof having fixed thereupon at one end the head-block or barrel, 3, and at the other end the tail-block 4-.

The head-block is rotatively mounted in a housing, 5, fixed in the brickwork, (i, of the boiler-setting, and the tail-block, .1-, is rotatively mounted in a housing, '7, fixed in said brickwork. The housings, 5 and 7 are connected by stay-bolls 8. Upon the tail-block, 4, is fixed a hand-wheel, 9, whereby the tail-block, 41-, head-block, 3, and pipe section, 2, can be rotated within the housings, 5 and 7, and about the axis oi the outletend of the pipe 1. The nozzle, 10, is mounted in the head-block, 3, one end of the nozzle being flattened and adaj'ited to occupy and traverse a slot, 11, in the endwall of the head-block, while the inner end of the nozzle is adapted to form a ball-andsocket joint at, 12, with the head-block adjacent to the outlet of the pipe-section, 2, and in position to receive therefrom the steam or air under pressure. During the operation of the device, the nozzle will be caused to form a tight joint with the headblock at, 12, in the different positions which the nozzle may assume as its outer end is shifted laterally to diil'erent positions along the slot 11. The outlet, 13, (shown formed by two apertures) is oll'set from and at one side of the axis about which the nozzle rotales to cause the issuing, jet to traverse a circular path as the nozzle is rotated. The parts thus mounted in the housings, 5 and 7, can be rotated by means of the handwheel 9.

A horizontal shalt, l l, is rotatively mounted in bearings upon the head-block, 3, and tail-block, 4, being shown extended through the hand-wheel, 9, whereby it serves to insure the fixed relation between the hand-wheelv and the tail-block; and said sha'tt has fixed thereupon near its front end a fork, 15, which embraces the nozzle, 10, and serves to shift said nozzle from side to side Within the slot, 11, in accordance with rocking movements of the shaft 14. V

' The mechanism thus far described does not differ materially from that shown in my said prior patent, the present invention relating more particularly to the means whereby rocking movements are automatically im parted to the shaft, 14:, by the rotary move- 'ment of the hand wheel and connected parts.

Mounted in bearings, 16, fixed upon the tail-block, 4:, is a shaft, 17, parallel with the shaft, 14, having fixed upon its inner end a notched wheel, 18, adapted at each rotation of the tail-block, 4, and connected parts, to be brought into engagement with a pin, 19, on the housing, 7, said pin being adapted to successively engage the several notches, 20, to impart to the notched wheel an intermittent rotative movement. At each rotation of the tail-block, 4:, hand-wheel and connected parts, the notched wheel, 18, will thus be advanced a distance equal to the distance between neighboring notches, 20, said notches being spaced apart in accordance with the distance it is desired to shift the nozzle laterally for its successive rotations, and said notches being such in number as to confine the shifting movement of the nozzle within the limits permitted by the slot, 11, in the head-block.

Between the initial and final notches, 20, the wheel, 18, is formed with a dead, or continuous peripheral portion, 23, adapted to be engaged by the pin, 19, to limit the rotative movement of said wheel in opposite directions. The outer end of the shaft, 17 has fixed thereupon a pinion, 21, adapted to mesh with a gear-segment, 22, fixed upon the roclr-shaft 14:. It will thus be seen that at each rotative movement of the handwheel and connected parts, a step-by-step rotative movement will be imparted to the notched wheel, 18, and transmitted therefrom through the shaft, 17, and pinion, 21, to the gear-segment, 22, and thence through the shaft, 14, to the fork, 15, to cause a lat eral shifting movement of the nozzle, 10, within the slot 11.

The face of the hand-wheel is provided with a series of openings, 24, adapted severally to receive a spring-bolt, 25, carried by the gear-segment, 22, to lock the nozzleshifting mechanism in fixed relation to the hand-wheel and connected parts in the several positions occupied from time to time by the nozzle, to prevent an accidental shifting of the nozzle during its rotative movement. The spring, 26, tends to force the springbolt, 25, into the openings, at; and the inner end of said bolt has fixed thereupon a camfollower, 27, adapted to engage cam-surfaces, 28, on a cam-disk, 29, fixed to, or

forming a part of, the notched wheel 18. The cam-surfaces on the cam-disk, 29, are so located with reference to the notches, 20, in the wheel, 18, that just before the pin, 19, engages a notch, 20, the cam-follower, 27, will be engaged by one of the cam-surfaces on the disk, 29, which serves to draw back the spring-bolt, 25, out of the opening, 24, in the hand-wheel, thus permitting the gearsegment, 22, to respond to the movement imparted to the notched wheel, 18, by said pin 19. 7

It will thus be seen that to cause the nozzle -outlet to traverse successive circular paths of different radii, it is necessary for the operator merely to continuously rotate the handwheel, 9, in one direction until the operation is arrested by the engagement of the pin, 19, with the dead surface, 23, on the wheel, 18, whereupon the hand-wheel can be rotated in the opposite direction to cause the nozzle-outlets to traverse the same circular paths in the reverse direction and in inverse order.

What I claim as new and desire to secure by Letters Patent is 1. In a boiler-flue cleaner, and in combination, a movably mounted nozzle provided with an outlet; means for moving the outlet-end of said nozzle through a circular path about an axis at one side of said outlet; means for shifting the outletend of the nozzle laterally with respect to said axis; automatically intermittently operating connections between said nozzleshifting mechanism and the means for moving the nozzle in a circular path whereby said'nozzle is automatically shifted; and means for supplying fluid under pressure to said nozzle.

2. In a boiler-flue cleaner, and in combination, a rotatory nozzle-support; a nozzle mounted upon said support to rotatetherewith, and laterally shiftable thereupon; a laterally movable nozzle-shifting member; a hand-wheel for rotating said support; a member intermittently automatically operated by the rotation of said hand-wheel; connections between said intermittently operated member and; said nozzl1e-shifting member; and means for supplying fluid under pressure to said nozzle,

3. In a boiler-flue cleaner, and in combination, a rotatory nozzle-support; a nozzle mounted upon said support to rotate therewith, and laterally shiftable thereupon; a laterally movable nozzle-shifting member; a rock-shaft mounted in bearings upon said nozzle-support; a nozzle-shifting arm on said rock-shaft; a handwheel for rotating said support; a fixed support; a pin mounted upon the fixed support; a wheel rotatively mounted upon said nozzle-support eccentrically thereto, and adapted at each rotation thereof to engage and be intermittently operated by said pin; a pinion in fixed relation to said intermittently op erated wheel; a gear-segment fixed upon said rock-shaft in engagement with said pinion; and means for supplying fluid under pressure to said nozzle.

4:. In a boiler-flue cleaner, and in combination, a rotatory nozzle-support; a nozzle mounted upon said support to rotate therewith, and laterally shiftable thereupon; a laterally movable nozzle-shifting member; a hand-wheel for rotating said support; a member intermittently operated by the rotation of said hand-wheel; connections between said intermittently operated member and said nozzle-shifting member; automatically operating means for locking in fixed relation to one another said nozzlesupport and said intermittently operated member between the intermittent movements thereof; automatic means for releas ing said locking means during the intermittent movement of said member; and means for supplying fluid under pressure to said nozzle.

5. In a boilenfiue cleaner, and in combination, a rotatory nozzle-support; a nozzle mounted upon said support to rotate therewith, and laterally shiit'table thereupon; a laterally movable nozzle-shifting member; a rock-shaft mounted in bearings upon said nozzle-support; a nozzle-shifting arm on said rock-shaft; a hand-wheel for rotating said support, provided with a plu 'ality of bolt-receiving openings; a fixed support; a pin mounted upon the fixed support; a wheel rotatively mounted upon said nozzlesupport eccentrically thereto, and adapted at each rotation thereof to engage and be intermittently operated by said pin; a pinion in fixed relation to said intermittently operated wheel; a gear-segment fixed upon said rock-shaft in engagement with said pinion; a spring-bolt mounted upon said gear-segn1ent adapted to engage the several openings in said hand-wheel; a cam-follower connected with said spring-bolt; and a cam-disk in fixed relation to said intermittently operated wheel engageable with said cam-follower to withdraw said springbolt preliminary to the intermittent operation of the nozzle-shifting mechanism.

6. In a boiler-line cleaner, and in combination, a movably mounted nozzle provided with an outlet; at hand-wheel and connecting mechanism for moving said nozzle in a circular path; a fixed support; a pin mounted upon said fixed support; a notched wheel carried by said hand-wheel and rotatively mounted eccentrically thereto, said notched wheel being provided with a series of notches successively engageable with said pin at successive rotations of said handwheel, and having a pin-engaging stop at either end of said series oi. notches; a 11oz zle-shii ting member; operating connections between said notched wheel and said nozzleshifting member; and means for supplying fluid under pressure to said nozzle.

In testimony whereof, I have hereunto set my hand this 27th day of December, 1911.

\VIILLIAM J. BRADLEY.

\Vitnesses J. E. DONSBAOII, B. A. Lnouo.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

